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55078136 = 2383109761
BaseRepresentation
bin1101001000011…
…0110011111000
310211122020222222
43102012303320
5103100000021
65244303212
71236104441
oct322066370
9124566888
1055078136
11290aa023
1216541b08
13b545919
14745a2c8
154c7e6ab
hex3486cf8

55078136 has 32 divisors (see below), whose sum is σ = 105613200. Its totient is φ = 26922240.

The previous prime is 55078109. The next prime is 55078151. The reversal of 55078136 is 63187055.

55078136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 55078096 and 55078105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71996 + ... + 72756.

Almost surely, 255078136 is an apocalyptic number.

It is an amenable number.

55078136 is a deficient number, since it is larger than the sum of its proper divisors (50535064).

55078136 is a wasteful number, since it uses less digits than its factorization.

55078136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 55078136 is about 7421.4645454924. The cubic root of 55078136 is about 380.4752502518.

The spelling of 55078136 in words is "fifty-five million, seventy-eight thousand, one hundred thirty-six".

Divisors: 1 2 4 8 83 109 166 218 332 436 664 761 872 1522 3044 6088 9047 18094 36188 63163 72376 82949 126326 165898 252652 331796 505304 663592 6884767 13769534 27539068 55078136